diff --git a/scripts/migrate_phase3_mobile.php b/scripts/migrate_phase3_mobile.php
index afc1b6c..fb9e086 100644
--- a/scripts/migrate_phase3_mobile.php
+++ b/scripts/migrate_phase3_mobile.php
@@ -42,7 +42,7 @@ $migrations = [
             FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
             UNIQUE KEY uq_user_device (user_id, device_fingerprint),
             INDEX idx_device_fingerprint (device_fingerprint)
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
+        )
     ",
 
     // ─── 2. Users table: Add phone + mobile fields ─────────
@@ -74,7 +74,7 @@ $migrations = [
             FOREIGN KEY (tenant_id) REFERENCES tenants(id) ON DELETE CASCADE,
             FOREIGN KEY (company_id) REFERENCES companies(id) ON DELETE CASCADE,
             FOREIGN KEY (uploaded_by) REFERENCES users(id) ON DELETE SET NULL
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
+        )
     ",
 
     // ─── 4. Invoice Processing Queue ───────────────────────
@@ -96,7 +96,7 @@ $migrations = [
             INDEX idx_status_tenant (status, tenant_id),
             INDEX idx_batch (batch_id),
             INDEX idx_pending (status, attempts)
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
+        )
     ",
 
     // ─── 5. Add batch_id to invoices table ─────────────────
@@ -122,7 +122,7 @@ $migrations = [
             INDEX idx_type (type),
             FOREIGN KEY (tenant_id) REFERENCES tenants(id) ON DELETE CASCADE,
             FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
+        )
     ",
 ];